# tracy

Most popular questions and responses by tracy-
## ENGLISH

#speech. TopIc:afRican slaughter rituals should be allowed in the suburbs?

*asked on April 18, 2015* -
## Chemistry

In which direction will the net reaction proceed. X(g) + Y(g) Z(g) .. Kp = 1.00 at 300k for each of these sets of initial conditions? 1) [X] = [Y] = [Z] = 1.0 M a] net reaction goes to the left [this one?] b] net reaction goes to the right c] reaction is

*asked on March 5, 2012* -
## Chemistry

Consider this system at equilibrium. A(aq) B(aq) Delta H = +750 kJ/mol .. What can be said about Q and K immediately after an increase in temperature? a] Q > K because Q increased.. b] Q>K because K decreased.. c] Q

*asked on March 5, 2012* -
## Comp 155

Use at least five adverbs and five adjectives to write a brief review of a movie, sporting envent, musical performance, or television show. Bold each adverb. Underline each adjective. This is what I wrote but not sure if I have all the adverbs and

*asked on May 1, 2011* -
## health

A friend plays video games 6 hours a day and gets upset when called to dinner with the family. This is a sign of? (a)anxiety disorder (b)a phobia (c)bipolar disorder (d)impulse control disorder

*asked on December 31, 2014* -
## physics

Jack drops a stone from rest off of the top of a bridge that is 24.4 m above the ground. After the stone falls 6.6 m, Jill throws a second stone straight down. Both rocks hit the water at the exact same time. What was the initial velocity of Jill's rock?

*asked on August 30, 2014* -
## Phyics

A model rocket blasts off from the ground, rising straight upward with a constant acceleration that has a magnitude of 75.5 m/s2 for 1.58 seconds, at which point its fuel abruptly runs out. Air resistance has no effect on its flight. What maximum altitude

*asked on September 25, 2013* -
## chem

The molar concentrations for the reactants and products at equilibrium are found to be [HCl] = 0.80 M, [O2] = 0.20 M, [Cl2] = 3.0 M, and H2O = 3.0 M. What is the value of the equilibrium constant for this reaction? the complete reaction is

*asked on November 19, 2012* -
## Chemistry

Did I answer this equilibrium question correctly? 2CO(g) + O2(g) 2CO2(g) 1) How will increasing the concentration of CO shift the equilibrium? a] to the right [i chose this] b] to the left c] no effect 2] how will increasing the concentration of CO2 shift

*asked on March 5, 2012* -
## STATS

Archaeologists often find only parts of ancient human remains. For example, they may find a small finger bone, called the metacarpal bone. Is it possible to predict the height of a human from the length of his or her metacarpal bone? To investigate, a

*asked on February 20, 2014* -
## Spanish Dos Questions

1. Which of the following is a common greeting in the Spanish speaking world? a) ducharse b) despedirse c) pelearse d) besarse *** ^^^ IDK because to say goodbye seems kinda correct too except it's not as much of a greeting? 2. Paco esta a) durmiendo ***

*asked on June 1, 2016* -
## Chemistry

In reverse osmosis, water flows out of a salt solution until the osmotic pressure of the solution equals the applied pressure. If a pressure of 58.0 bar is applied to seawater, what will be the final concentration of the seawater at 20 C when the reverse

*asked on February 18, 2012* -
## Algebra please help out

In each bouquet of flowers, there are 4 roses and 6 white carnations. Complete the 4 and 6 table to find out how many roses and carnations there are in 4 bouquets of flowers? Please help answer

*asked on October 29, 2014* -
## physics

How high will a 1.85 kg rock go if thrown straight up by someone who expends 80.0 J of energy on it?

*asked on September 29, 2012* -
## Chemistry

At -15.0 C, what is the maximum mass of fructose (C6H12O6) you can add to 3.00 kg of pure water and still have the solution freeze? Assume that fructose is a molecular solid and does not ionize when it dissolves in water. I'm confused on how you pick the

*asked on February 16, 2012* -
## Calculus

evaluate the integral of dx/square root of 9-8x-x^2

*asked on November 19, 2011* -
## Physics

A rifle is aimed directly at the bull's eye of a target 50m away. If the bullet's speed is 350 m/s, how far below the bull's eye does the bullet strike the target?

*asked on September 10, 2012* -
## Math

Archaeologists often find only parts of ancient human remains. For example, they may find a small finger bone, called the metacarpal bone. Is it possible to predict the height of a human from the length of his or her metacarpal bone? To investigate, a

*asked on February 20, 2014* -
## 5th grade English

1. Many useful tools are made from metal. 2. Steel is an important metal for buildings and tools. 3. An iron bar will rust over time. 4. Oxygen from the air mixes with the metal. 5. That orange deposit on the outside surface is called rust. 1.

*asked on August 20, 2009* -
## Chemistry

Methane (CH4) is the major component of natural gas. 2.5 moles of methane were placed in a commercial colorimeter and subjected to a combustion reaction. The reaction released 2800 kJ of energy. Compare this energy value to the energy values of paraffin

*asked on April 23, 2016* -
## Physics

An olympic sprinter can run 100yd in 9.0s. At the same rate, how long would it take the sprinter to run 100m?

*asked on July 9, 2013* -
## Delcambre High

a trail mix recipe calls for 1/3 pound of mixed nuts, 4/15 pound of raisins and 2/5 pounds of granola. What is the ratio of raisins to mixed nuts in simplest form?

*asked on June 4, 2014* -
## STAT - Please check answer

In a study, nine tires of a particular brand were driven on a track under identical conditions. Each tire was driven a particular controlled distance (measured in thousands of miles), and afterward the tread depth was measured. Tread depth is measured in

*asked on February 24, 2014* -
## chem

a.) At equilibrium, the molar concentrations for reactants and products are found to be [I2] = 0.50 M,[Cl2] = 0.60 M, and [ICl] = 5.0 M. What is the equilibrium constant (Kc) for this reaction? b.) The concentration of I2 is increased to 1.5 M, disrupting

*asked on November 19, 2012* -
## english

the climax comes at the end of the middle section of the story after which the author "ties up loose ends" by telling the reader what happened to each major character. true or false

*asked on December 1, 2011* -
## Physics

A rifle is aimed directly at the bull's eye of a target 50m away. If the bullet speed is 350 m/s, how far below the bull's eye does the bullet strike the target?

*asked on September 10, 2012* -
## Spanish Two

1. Which word belongs in the blank? ______ compro el libro a Ana. a) La b) Le (MY ANSWER) c) Lo d) Ella 2. He brings us a cake on Sundays. a) Nos trae un pastel...(MY ANSWER) b) Me trae un pastel... c) Les trae un pastel... d) Os trae un pastel... 3. How

*asked on May 20, 2016* -
## Statistics

In a study, nine tires of a particular brand were driven on a track under identical conditions. Each tire was driven a particular controlled distance (measured in thousands of miles), and afterward the tread depth was measured. Tread depth is measured in

*asked on February 25, 2014* -
## Calculus please help

Find the centroid of the area bounded by the parabola y=4-x^2 and the x-axis A.(0,1.6) B.(0,1.7) C.(0,1.8) D.(0,1.9)

*asked on November 22, 2011* -
## Stats

Assume that event A occurs with probability 0.4 and event B occurs with probability 0.5. Assume that A and B are disjoint events. The probability that either event occurs (A or B) is A. 0.0 B. 0.7 C. 0.9 D. 1.0.

*asked on March 29, 2014* -
## math

a ladder reaches 12m up to a vertical wall and has a gradient of 4. how far is the bottom of the ladder from the wall

*asked on May 27, 2019* -
## chem

When the concentration of I2 is increased to 1.5 M, the ratio of products to reactants is 28. The equilibrium constant for the reaction is 83. In which direction will the reaction shift to regain equilibrium?

*asked on November 19, 2012* -
## chemistry

When will hydrogen bonding occur?Give an example of liquid other than H2O in which this type of force is important. In order for a hydrogen bond to occur there must be both a hydrogen donor and an acceptor present. The donor in a hydrogen bond is the atom

*asked on October 5, 2012* -
## STAT

Calculate SP (the sum of products of deviations) for the following scores. Note: Both means are decimal values, so the computational formula works well. X Y 0 2 0 1 1 0 2 1 1 2 0 3 Assume a two-tailed test with .05. (Note: The table does not list all the

*asked on March 3, 2013* -
## Geometry

Angle JKL is congruent to angle MNP, KL= 21x - 2, NP = 20x, LJ = 15x, PM = 13x + 4. Find LJ. I don't understand how to do it! Please, help! :)

*asked on January 28, 2009* -
## Algebra

Write 3 ratios equivalent to the ratio of boys to girls on the bus is 20/15? Please help answer

*asked on October 28, 2014* -
## Chemistry

Calculate the quantity of heat to convert 25.0g of ice at -10.0 degrees celcius to steam at 110.0 degrees celcius?

*asked on January 12, 2011* -
## chem

An 80 proof brandy is 40.0% (v/v) ethyl alcohol. The "proof" is twice the percent concentration of alcohol in the beverage.How many milliliters of alcohol are present in 700mL of brandy?

*asked on November 8, 2012* -
## computer sciece

Let INFINITE PDA ={|M is a PDA and L(M) is an infinite language} Show that INFINITE PDA is decidable.

*asked on January 9, 2012* -
## chem

Calculate the final concentration of a. 4.0 L of a 4.0 M HNO3 solution is added to water so that the final volume is 8.0L b. Water is added to 0.35L of a 6.0M KOH solution to make 2.0L of a diluted KOH solution. c.A 20.0 mL sample of 8.0% (m/v)NaOH is

*asked on November 8, 2012* -
## Math

Cheryl gave Brenda 7 coins worth .92 cents. Two coins were quarters. What were the other 5 coins?

*asked on November 24, 2008* -
## Physics (CHECK)

One student is pushing on a chair with a force of 260.6 N directed at an angle of 30 degrees above horizontal while a second student pushes on the same side of the chair with a force of 21.0 N at an angle of 15 degrees below horizontal. What is the

*asked on October 1, 2009* -
## Chemistry of Life Science

1. In the introduction to this experiment, it states that you reacted 2.5 grams of salicylic acid with an excess of acetic anhydride, meaning that there would be a higher number of moles of acetic anhydride then salicylic acid, proportionally. Assuming the

*asked on April 6, 2016* -
## Inorganic Chemistry

Hello, I am trying to write a chemical equation for a reaction I did and I cannot for the life of me figure out how to do it. I added cobalt chlorid hexahydrate, NH4Cl, NH4OH, H2O2 and HCl. The major product was [Co(NH3)5Cl]Cl2 but I don't know what the

*asked on November 18, 2007* -
## trig

Complete the general solution to y = arcsin -. y=____±2k IM lost please help

*asked on March 24, 2010* -
## Business Math

Nancy would like to accumulate $10,000 by the end of 3 years from now to buy a used car from her friend,Jin. She has $2,500 now and would like to save equal annual end of year deposits to pay for the car. Calculate how much should she deposit at the end of

*asked on July 1, 2017* -
## chem

Zn^2+(aq) + 2OH^-(aq) ----> Zn(OH)2(s) a) how the addition of HCl affects the equilibrium? my answer is it will shift to the right b) how the addition of a small amount of NaOh affects the equilibrium?my answer is it will shift to the left c) how the

*asked on November 26, 2012* -
## math

A group medical practice has 40,000 patients. Charts vary in thickness from 1/4 to 1 inch thick. The average of all charts is 1/2 inch thick. Using the average 1/2 inch thickness, how many inches of shelf space will be required for 40,000 charts?

*asked on October 16, 2012* -
## physics

One student is pushing on a chair with a force of 260.6 N directed at an angle of 30 degrees above horizontal while a second student pushes on the same side of the chair with a force of 21.0 N at an angle of 15 degrees below horizontal. What is the

*asked on October 1, 2009* -
## STATS

Suppose that the average weight of students in a statistics class is 75.5 kilograms with a standard deviation of 10.3 kilograms. A. 45% of the student weights are above ____ kilograms? Z=.3264=x-75.5/10.3 Now what?

*asked on February 10, 2014* -
## Math

In a survey of families in which both parents work, one of the questions asked was, "Have you refused a job, promotion, or transfer because it would mean less time with your family?" A total of 200 men and 200 women were asked this question. "Yes" was the

*asked on June 28, 2013* -
## Physics

An arrow is shot horizontally from a cliff at 15 m/s land 30 m away. How high is the cliff?

*asked on September 10, 2012* -
## chemistry

how do you determine the last digit in any measured number?

*asked on September 16, 2011* -
## STAT

An independent-measures research study compares three treatment conditions with a sample of n = 10 in each condition. The sample means are M1 = 2, M2 = 3, and M3 = 7 a. Compute SS for the set of 3 treatment means. (Use the three means as a set of n = 3

*asked on February 24, 2013* -
## Chemistry

For A+2B 2C and Kc = 2.13 For 2C D and Kc = 0.254 Calculate the value of equilibrium contant for the reaction D A+2B I'm so sorry to bother anyone.. but am i only supposed to multiple 2.13 and 0.254 together in order to get the third value of Kc? That's

*asked on March 5, 2012* -
## General

What can you tell about the meaning of astronaut from its Greek roots? 2. What do the latin prefix and root in transmit tell you about the word's meaning?

*asked on November 3, 2010* -
## MATH

If the demand function for a commodity is given by equation p^2+12q=18 and the supply function is given by the equation 700-p^2+6q=0, find the equilibrium quantity and price

*asked on June 15, 2015* -
## Math Geometry

A triangle has vertices P(a,b), Q(c,d), and R(e,f). You are asked to prove that the image triangle angle P'Q'R' of triangle angle PQR after reflection across the y-axis is congruent to the preimage. What coordinates should you use for the vertices of

*asked on January 28, 2009* -
## stat

Explain why using the t statistic may be an appropriate alternative to using a z-score

*asked on February 5, 2013* -
## world history

After World War II, Africa's economy was based on agriculture. I say false

*asked on January 22, 2012* -
## Chemistry quick question

Ok so a quick question. I have the equation Ca3(PO4)2 --> 3Ca+2 + 2PO4-3 Sorr its confusing, int he first part the 3 4 and too are all little numbers at the bottom, for the second part the +2 and -3 are small numbers at the top to show the charges. Ok so

*asked on June 20, 2006* -
## world history

What Japanese art form, meaning "pictures of the floating world," was created using woodblock prints and greatly impacted Western art, particularly Impressionists in Europe and America? I say haiku

*asked on January 24, 2012* -
## algebra

evaluate and write in the solution in scientific notation 3x10^5\1.5x10^3

*asked on October 18, 2011* -
## algebra,math

Use the Pythagorean Theorem to find the missing side of the triangle. Round to the nearest tenth, if necessary. a = ?, b = 5, c = 8 A. 6.0 B. 6.1 C. 6.2 D. 6.3

*asked on October 24, 2011* -
## physics

One student is pushing on a chair with a force of 260.6 N directed at an angle of 30 degrees above horizontal while a second student pushes on the same side of the chair with a force of 21.0 N at an angle of 15 degrees below horizontal. What is the

*asked on October 1, 2009* -
## Physics

An arrow is shot horizontally from a cliff at 15 m/s land 30 m away. How high is the cliff?

*asked on September 10, 2012* -
## Finance

Martell Mining Company's ore reserves are being depleted, so its sales are falling. Also, its pit is getting deeper each year, so its costs are rising. As a result, the company's earnings and dividends are declining at the constant rate of 3% per year. If

*asked on November 11, 2010* -
## Math

Use the following table to answer the questions. (Give your answers correct to two decimal places.) x 1 1 3 3 5 5 7 7 9 9 y 3 2 6 1 3 3 3 2 5 3 (a) Find the equation of the line of best fit. y hat = 2.6,.1x Correct: Your answer is correct. . + Correct:

*asked on June 28, 2013* -
## Algebra

1. Why does the inequality sign change when both sides of the inequality are multiplied or divided by a negative number? Does this happen with equations? Why or why not? 2. Write an inequality for your classmates to solve. In your inequality, use both the

*asked on November 22, 2010* -
## statistics

david electronics had a profit of $10 million in 2002. Profit doubled from 2002 to 2003 and profit increased eight fold from 2003 to 2004. what was the annual geometric mean rate of growth from 2002 to 2004?

*asked on September 3, 2011* -
## Algebra

1. Why does the inequality sign change when both sides of the inequality are multiplied or divided by a negative number? Does this happen with equations? Why or why not? 2. Write an inequality for your classmates to solve. In your inequality, use both the

*asked on November 22, 2010* -
## english

what is the complete subject in romans held this festival on february 15

*asked on September 25, 2013* -
## math

If 1/2 of the students are girls and 1/3 of the girls have long hair, what percent of the girls have long hair

*asked on February 21, 2010* -
## math

Rainfall for September in Fiji averages 11" according to World Travel Guide. This year it rained 3% less. How many inches did it rain this year? (Round to the nearest tenth.)

*asked on September 8, 2014* -
## chemistry 101

If 15g of NaOh is dissolved in 285 g of water, calculate the following. Assume the density of the solution is 1.06 g/cc. a) Calculate the moles of NaOH in the solution? My answer is 15gNaOH/40g NaOH= .0375 mole NaOH b) Waht is the mass % w/w of the

*asked on December 8, 2012* -
## algebra

The price of a small cabin is $85000 the bank requires a 5% down payment the buyer is offered two mortgage options: 20 year fixed at 9.5% or 30 year fixed at 9.5% calculate the amount of interest paid for each option how much does the buyer save in

*asked on November 7, 2012* -
## math

write each addition vertically.decide which new groups you will make.then,add to see if you were correct. 256+1273___________ a new ten?____________ a new hundred?_________ a new thousand?____________ need answers and please explain

*asked on September 13, 2010* -
## world history

Select the Japanese figure of the feudal warrior society whose role was similar to that of the knight in Medieval Europe. I say emperor

*asked on January 24, 2012* -
## geometry

The equal sides of an isosceles trapezoid each measure 5, and its altitude measures 4. If the area of the trapezoid is 48, find the lengths of its bases.

*asked on March 19, 2011* -
## science

1) In a syringe, what happens to the air paricles when you push the plunger? 2) In a syring, what happens the the air particles in the bubble from the bubble wrap when you pull up the plunger? 3) Are there more air particles in the bubble when it is

*asked on January 24, 2008* -
## health

Self actualization means when you focus on yourself all the time

*asked on October 8, 2015* -
## world history

What is true about the key German leaders who were responsible for the Holocaust? A. The Marshall Plan provided them with the opportunity to emigrate to the United States and avoid trial. B. The Potsdam Conference, held in Potsdam, Germany, revealed that

*asked on January 22, 2012* -
## math

wei made two square pyramids and glued the congruent bases together, how many faces does here figure have?

*asked on January 4, 2011* -
## science

About how long does it take for sound to travel 1 Km?

*asked on September 15, 2007* -
## Math HELP

Find the like terms in the expression 1.) y + 1.2y + 1.2z 2.) simplify 2 + 17x - 5x + 9 3.) simplify 3(5 =6) - 4 4.) Factor 81 – 27p

*asked on November 6, 2017* -
## world history

Hitler�s �Final Solution� referred to the extermination of the Jewish population living in and around Germany during the time of World War II. This resulted in the execution of over 6 million Jews. true or false I say its true

*asked on January 22, 2012* -
## physics

An airplane starts from rest and moves forward with a constant acceleration of 5 m/s2 along a runaway 250 m long. How long does it take the plane to reach a speed of 46.0 m/s?

*asked on January 14, 2012* -
## computer sciece

Baud Rate Generator: library ieee; use ieee.std_logic_1164.all; use ieee.std_logic_unsigned.all; entity br_gen is generic(divisor: integer := 3); port( sysclk:in std_logic; --system clock sel :in std_logic_vector(2 downto 0); bclkx4:buffer std_logic;

*asked on November 27, 2011* -
## Chemistry

What is the enthalpy change if 25.0 g of methane are burned? 890kJ of heat released for every mole of methane that reacts. CH4 + 2O2 = CO2 + 2H2O

*asked on March 18, 2014* -
## Calculus

Find the area in the first quadrant bounded by the arc of the circle described by the polar equation r = (2 sin theta)+(4 cos theta) A. 5pi/2 B. (5pi/2)+4 C. 5pi D. 5pi + 8

*asked on November 21, 2011* -
## acids

Which of the following bases is the weakest? (CH3)2NH , Kb = 5.1 x 10–4 ClO–, Kb = 2.9 x 10–7 SO42–, Kb = 8.3 x 10–13

*asked on April 4, 2012* -
## algebra

We did not find results for: suppose a company manufactures MP3 players and sell them to retailers for $98 each. it has a fixed cost of $262,500 related to the production of the MP3 players and the cost per unit is $23 what is the total revenue function,

*asked on July 10, 2010* -
## Algebra

The amount of paint needed to cover the calls of a room varies jointly as the perimeter of the room and the height of the wall. If a room with a perimeter of 60 feet and 8-foot walls requires 4.8 quarts of paint, find the amount of paint needed to cover

*asked on July 5, 2018* -
## Math

An open box is formed from a piece of cardboard 12 inches square by cutting equal squares out of the corners and turning up the sides. Find the volume of the largest box that can be made. Help!

*asked on February 6, 2017* -
## chem

How many grams of KBR, could be recovered by evaporating 650 g of a 15.0% KBr solution of dryness?

*asked on November 21, 2012* -
## CHEM

what volume would 10.5g of nitrogen gas, N2, occupy at 200.K and 2.02atm?

*asked on November 2, 2012* -
## Elmentary Math for Teachers II

A spinner containing 8 numbers is spun. What is the probability of the event that the spinner A.) lands on an odd number? B.)lands on a number divisible by 3? C.)does not land on 5,6, or 7? D.)lands on a number less than 4?

*asked on February 8, 2013* -
## Math

You visited your local bank. Because of your good credit, they agreed to give you a personal loan, simple interest at a current interest rate of 12.5% APR. you will pay this back in 1 year Interest=prt= Total Payment =Principle +interest = Payment per

*asked on March 8, 2017* -
## Stats

The high temperature X (in degrees Fahrenheit) on January days in Columbus, Ohio varies according to the Normal distribution with mean 21 and standard deviation 10. The value of P(X < 10) is

*asked on March 29, 2014* -
## world history

Which system of government rests furthest left on the political spectrum and, as a totalitarian regime, focuses on the government owning all aspects of the economy, including property and the means of production?

*asked on January 22, 2012*